package com.atguigu.exer;

public class ArrayExer1 {

    public static void main(String[] args) {
        int[][] arr = new int[][]{{3,5,8},{12,9},{7,0,6,4}};

        int sum = 0;//记录总和
        for(int i = 0;i < arr.length;i++){
            for(int j = 0;j < arr[i].length;j++){
                sum += arr[i][j];
            }
        }

        System.out.println("总和为：" + sum);
    }

}
